import urllib.request
import re


def open_url(url):
    req=urllib.request.Request(url)
    req.add_header('User-Agent','Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36')
    page=urllib.request.urlopen(req)
    html=page.read().decode('utf-8')

    return html

def get_img(html):
    p=r'(?:(?:[0,1]?\d?\d\d|2[0-4]\d|25[0-5])\.){3}(?:[0,1]?\d?\d|2[0-4]\d|25[0-5])'
    iplist=re.findall(p,html)


    for each in iplist:
        print(each)


if __name__=='__main__':
    url="http://cn.proxy.com"
    get_img(open_url(url))
    
